let's say I have a json map with 10 fields; each json map is modeled as an entity in a datomic schema and the json fields map neatly to entity attributes. does that mean that asserting every json map requires at least 9 datoms? (one being the identity index)

+1, if you save each map as a separate empty transaction

hi, I’m running into an issue where cloud/ion deployments are failing, and I’ve tracked the issue to the failure of one the lambdas in the deployment step function. I’m getting the following error back

{
  "error": "States.DataLimitExceeded",
  "cause": "The state/task 'arn:aws:lambda:us-east-1:xxxx:function:dat-NZ-Compute-CreateLambdaFromArray-1915A1Q1QXEG8' returned a result with a size exceeding the maximum number of characters service limit."
}

@eoliphant I know this is weird, but check if shortening the description of your ion fixes it. I may have run into something similar in the past and that fixed it.

(Not sure how long the description is, if its super short then maybe thats not the obvious fix)

Yeah, i’ve seen that before as well, didn’t think any of the new ones were longer than ones that were working but will double check

Many thanks for the great Datomic Cloud tutorial. 🙂✌️ https://docs.datomic.com/cloud/setting-up.html

can I send cast to stdout?

@jeff.terrell So I guess that error message is there already - https://docs.datomic.com/cloud/troubleshooting.html#dependency-conflict

Anyone with any tips and tricks on how I can get an overview of all schemas in a datomic cloud database? I used to use Datomic console for this before when I was using a peer.

I'd believe I found a mistake in the Datomic tutorial https://docs.datomic.com/on-prem/tutorial.html but I surely just missed something. They 1. Transact inorrect inventory counts, 2. Retract one, 3. Update the other, 4. Look at the DB as-of #1 so I'd expect to see what was added, ie

[[:db/add [:inv/sku "SKU-21"] :inv/count 7]
   [:db/add [:inv/sku "SKU-22"] :inv/count 7]
   [:db/add [:inv/sku "SKU-42"] :inv/count 100]]

(d/q '[:find ?sku ?count
       :where [?inv :inv/sku ?sku]
              [?inv :inv/count ?count]]
     db-before)
=> [["SKU-42" 100] ["SKU-42" 1000] ["SKU-21" 7] ["SKU-22" 7]]